Garment or ironing press



Sept. 18, 1934. J, P, DA 1,974,264

GARMENT OR IRONING PRESS Original Filed Sept. 3, 1930 3 Sheets-Sheet l '0, I IIIH fill/[I14 INVENTOR.

BYWI? A TTORNEYS.

GARMENT OR IRONING PRESS Original Filed Sept. 3. 1930 3 Sheets-Sheet 2 INVENTOR.

ATTORNEYS.

Sept. 18, 1934. J. P. DALY GARMENT 0R IRONI NG PRESS Original Filed. Sept. 3, 1930 3 Sheets-Sheet 5 INVENTOR.

ATTORNEYS.

Patented Sept. 18, 1934 uurrso STATES 1,974,264 GARMENT on iuoNiNG PRESS Joseph P. Daly, Syracuse, N. Y., assignor to The Prosperity Company 1110., Syracuse, N. Y., a

corporation of New York Application September 3, 1930, Serial No. 479,524 Renewed February 10, 1934 16 Claims.

This invention relates to pressing machines such as garment and laundry presses and parti'cularly to the actuating mechanism by which r the press jaws of such presses are moved into J open and closed position.

This application contains subject matter in common with an application, now abandoned, filed by me August 6, 1926 bearing Serial Number 127,529. a

The principal object of the invention is to provide a' novel operating mechanism for presses of the two step type in which the press is'first, closed under initial light pressure and additional pressure supplied by a second step operation. A fur- 10 ther object of the invention is to provide a press having a pair of motors, one of which closes the press under initial light pressure and the other of which applies final heavy pressure, both motors operating through the same novel actuating mechanism. A further object of the invention is to provide a pressing machine having a pair of motors for applying initial light pressure and final heavy pressure respectively, and to so connect these motors with the frame and with the actuat- -ing mechanism that the movement of one mo- '30 will appear and will be pointed out as the description proceeds.

The invention consists in the novel features and'in the combinations and constructions herein after set forth and claimed.

In describing this invention, reference is had to the accompanying drawings in which like characters designate corresponding partsin all the views.

Figure l is a side elevation with the frame in section to show the operating mechanism of the 40 pressing machine embodying my invention, the

press being shown in open position.

Figure 2 is a View with the frame in section to showthe operating mechanism of the pressing machine shown in Figurel, when the pressing ele-' n45 ments are in closed position,

Figure 3 is a schematic showing, mostly in sec tion, of the operating motors showing their connection to the crank means and to the control devices.

Figure 4 is a sectional view of the crank means through which the motors operate the actuating mechanism.

A movable pressing element, jaw or head 11 is secured to a yoke 12 which is pivotally mounted A 55 at 13 on a frame 14 of the pressing machine. The

movable pressing jaw or head 11 moves into and out of contact with a fixed pressing element, jaw or buck 15 which is supported by a neck 16 mounted on the pressing machine frame 14. A counterg spring 1'1 which is connected at its upper end to 60 the rearwardly extending arm of the yoke 12, and at its lower end to the pressing machine frame 14, normally holds the press in open position as shown in Figure 1.

An upper link 20 is pivoted to the yoke at 21, and the length of the link 20 is adjustable by means of the hand wheel 22, according to conventional practice. A lower link 24 is pivoted at 25 to the'pressing machine frame 14. An operating link 28 is pivotally connected at 29 with the upper link 20 and at a point spaced from the pivot 29 is pivotally connected at 30 with the lower link. 24. The portion of the operating link 28 between thepivotal connections 29 and 30 forms an intermediate link connecting the upper link 20 with the lower link 24, and the portion of the operating link 28 which extends beyond the pivot point 30 is in effect an arm which is rigid with the intermediate link. The upper link x 20 and the lower link 24, with their connecting intermediate link, form a toggle.

The lower end of the operating link 28 is formed with a slot 32 therein. A crank shaft means 34 includes a crankshaft which in the preferred a, embodiment of the invention is a multiple crank 8 shaft provided with three cranks, one or more of. which is crank means. In the specific embodiment therein, one of these cranks, designated as 35', connects with the operating link 28 and W passes through the slot 32 therein, thus forming a i lost motion connection through which the operating link 28 may be actuated by the crank shaft means 34, and vice-versa. Although the movable jaw 11 is particularly shown as being i, operatively connectedwith one of the cranks of 90 the. crank means35, and 41, any operative connection between the movable jaw and the crank shaft means is contemplated which will closethe press. 1 v

The crank shaft means 34 is revolvably 1'00 mounted in bearings ,38 provided on the pressing machine frame 14. The crank shaft means34 also includes the driven cranks or crank means 40 and 41 which are connected to piston rods 44, 45 of the, fluid motors 4'7 and 48 respectively. The fluid motor 48 provides driving means connected with the crank means 35, 40 and 41 to rotate the crank shaft means 34 to close the press to initial closed position. Similarly, the fluid motor 47 provides driving means connected lot lit

with the crank means to rotate the crank shaft means 34 to close the press to final closed position. The connection between the driven crank and motor 47 includes a bearing member 50 which is rigidly secured to the piston rod 44 and which is provided with a slot51 in which the crank 40 operates, thus providing a lost motion connection between the motor 47 and the crank shaft means 34, or particularly the crank 40 of the crank means. mounted for oscillation on the pressing machine frame 14 by the pivotal connections 52 and 53 respectively.

When the press is in open position, the toggle links 20 and 24 will be in the position shown in Figure 1, and the motor 48 and crank 41 will be in position to begin the power stroke'of the motor 48 to preliminarily close the press. When the motor 48 is operated, by means later to be described, the crank shaft means 34 will be rotated in a counterclockwise direction and the crank 40 will be moved toward the motor 47. As the crank shaft means 34 continues to rotate, the toggle composed of the links 20 and 24 will move toward straightened position and the crank 40 will move toward the motor 47 until it is in line with the piston rod of the motor 47 and the pivotal connection 52 at which time the lost motion between the crank 40 and the piston rod 44 will be taken up, and the motor 47 will be in dead center position relative to the crank 40. When the press reaches closed position under light pressure, or initial closed position, the fluid motor 47 will be just past dead center position and will be in approximately the same position relative to the driven crank 40 as in the case of the motor 48 and driven crank 41, as shown in Figure 1 just before the beginning of the power stroke of the motor 48. The motor 47 is operated in a manner later to be described to continue the rotation of the crank means 34 to effect final straightening of the toggle and to apply final heavy pressure between the jaws 11 and 15 by rotating the operating link 28 about the pivotal connection 30 as a fulcrum, thus exerting a great upward force, through the pivotal connection 29 the adjustment of the link 20, the play in the because of the fact that the adjustment of the pivotal connections 21 and 13, the thickness 'of the work between the pressing elements, and the compression of the padding on the pressing elements.

Figure 2 shows the press closed under heavy pressure and the operating link 28 in line with the crank 35 of the crank means 34. If the crank means 34 are rotated further in a counterclockwise direction in applying final heavy pressure to the pressing elements, it would be necessary for the crank 35 to slide in the slot 32, as will be apparent from the position of the links inFigure 2. The lost motion connection permitting this sliding of the crank 35 in the slot '32. is provided ress will often be such that the crank shaft means 34 rotates farther, in applying final heavy pressure, than the position shown in Figure 2. Ii the slot were not provided, then the link 28 would be pulled longitudinally which would tend to open the toggle.

Figure 3 shows the motors 47 and 48 in section, and shows the devices for supplying working fluid to these motors. The motor 47 includes a cyl- The motors 47 and 48 are inder having a piston 61 therein. The piston 61 is rigidly secured to the piston rod 44. The motor 48 includes a cylinder 65 having a piston 66 therein. The piston 66 is rigidly secured to the piston rod 45. As previously pointed out, the fluid motor 48 provides driving means connected with'the crank means 35, 40' and 41 to rotate the crank shaft means 34' to close the press to initial closed position. Similarly, the fluid motor 47 provides driving means connected with the crank means to rotate the crank shaft means 34 to close the press to final closed position.

The supply of working fluid to the motors is controlled by operator-operated devices of the two hand control type having push buttons 70 and 71,'each of which is operated by one hand of the operator. The push button 70 operates a lever 72 which contacts with a stem 73 of a normally open exhaust valve 74 which is located in a valve casing 75 and held in normal open position by a spring 76. i

The push button 71 operates valves in a valve casing which valves include a normally closed intake valve 81 and a normally open exhaust Valve 82 which are connected together by a spacer rod 83 so that they operate as a unit. A spring 85 holds the valves 81 and 82 in normal position. The exhaust valve 82 is provided with a valve stem 87 which projects through the end .of the valve casing 86, and a lever 88 transmits the motion of the'push button 71 to the valve stem 87 to operate the valves 81 and 82 in the valve casing 80.

Working fluid is supplied from a suitable source through a fluid supply line 90 which connects with the valve casing 80. When the valves 81 and 82 are moved into operative position work: ing fluid will flow from the fluid supply line 90, around the open intake valve 81, through the valve casing 80, and through a pipe 91 to the valve casing'75. Unless the push button 70 has been depressed to close the exhaust valve 74, working fiuidwill escape'through the valve casing 75 and open exhaust valve 74; vItis thus impossible to operate the motors 47 and 48 unless both push buttons 70 and 71 are depressed at the same time. If the push button 70 has been depressed to close the exhaust valve 74, working fluid will pass from the pipe 91 through a pipe 93 to the cylinder 65 of the motor 48 and the piston 66 and piston rod 45 will move downwardly to operate the press actuating mechanism, as previously described, to close thepress under initial light pressure.

The cylinder 65 is provided with a port opening 95 in the side wall thereof near the end of the stroke of the piston 66. The port opening 95 is connected by 'a conduit 96 with a check valve casing 97 containing a check valve 98. The check valve casing 97 is. connected by a pipe with the cylinder'GO of the motor 47. When the piston 66 of the motor 48 has moved sufficiently far enough to uncover the port opening. 95, working fluid'will pass from the cylinder 65, through the port opening 95, conduit 96, around the check valve 98, through the check valve casing 97, and pipe .100; to the cylinder 60 of the motor. 47 to operate the piston Gland piston rod 44 to move the actuating mechanism, as previously described, to apply final heavy pressure to the pressing jaws .or elements lland 15.

The check valve 98 prevents back flow of air from the pipe 100 and check valve casing 97 to the cylinder 65. Any time that the operator releases the push buttons 78 and 71, the springs '76 and respectively will open their respective exhaust valves 74 and.82 and "permit working fiuid toexhaust from the cylinder 65 of :the motor '48 through the pipe 93, and pipe 91',and valve the push buttons'IO and 71.

When the operator wishes to unlock the press from final heavy pressure by exhaustingthe working fluid fromthe cylinder 60, he may do so by depressing a'push, button whichoperates a lever 106 to move a stem I07 and open a normally closed; exhaust valve 110., The exhaust valve 110 is held closed by; a spring-112 but when opened by depression of the pushbutton 105, working fluid will escape from the cylinder 60 through a pipe 115 and around the open exhaust valve 110. I The'press may be opened by the action of the spring 1'? previously described. To facilitate the opening of the press, auxiliaryspringsllQ and may be connected; between the cranks 40 and 41 respectively and the pressing machine frame or the pivots 52 and 53 respectively; as shown in the drawings.

- From the above description, it will be apparent that I have provided a noveloperatingmeans for a pressing'machine in whichza pair of motors obtain maximum efliciency by virtue. of the fact that theyare so mounted that the second motor or driving means comes into operative position for delivering the power stroke just after the first motor or driving means has completed the effective part 'of its power stroke and when the press is moved to initial closed position.

The invention is illustrated in its preferred embodiment, but various changes and modifications may be made without departing from the spirit of the invention as set forth in the appended claims.

What I claim is: 1.' In a pressing machine ,in combination, a frame; cooperative pressing elements, one of which is movable with respect-to the other to open and close the press; actuating mechanism for the movable pressing element including an operating link; a multiple crank shaft journalled in the frame and having a crank connected with said operating'link to actuate the same andalso having a pair of driven cranks; a first motor connected to one of the pair of driven'cranks to actuate the crank shaft to operate the actuating mechanism to close the press under light pressure; a second motor connected tothe other driven crank to actuate the crank shaft'to operate the actuating mechanism to-close the press under heavy pressure, said motorsand driven cranks being sopositioneditliat the first motor is in operative position relative to the" crank actuated. thereby when the pressisin open position and the second motor is in operative position relative to the crank actuated thereby only when the press is closed under light pressure.-

2. In a pressing machine in combination, a frame; cooperative pressing elements, one of which is movable with respect to the other to open and close the press; "actuating mechanism for the movable pressing element including an operating link; a multiple crank shaft journalled in the frame and having a crank connected with said operating linkto. actuate the same and also having a .pair of driven cranks; a'first 'motor connected to one of the pair of driven cranks: to

actuate the crank shaft to operate the actuating mechanism to close the press underlight pressure; ,a second motor connected to the 'other driven crank to actuate the crank shaft to operate the actuating mechanism to close. the press under heavy pressure, pivotal connections between the motorsand the frame'at spaced apart points on the frame, so that the'first motor is in operative position relative to the V crank actuated thereby when the press is in open position and the second motor is in operative position relative to the crank actuated thereby only when the press is closed under light pressure.

3. In a pressing machine in combination, a frame; cooperative pressing. elements, one of which is movable with respect to the other to open'and close the press; actuating mechanism for the movable "pressing element including an operating link; a multiple crank shaft journalled in the frame and having a crank connected with said operating link to actuate the same and also having a pair of driven cranks; a first motor connected to one of the pair of driven cranks to actuate the crank shaftto operate the actuating mechanism toclose the press under light pre's sure; a second motor connected tothe other driven crank to actuate the crank shaft to operate the actuating mechanism to close the press under heavy pressure, said motors and driven cranks being so positioned that the first motor is in operative position relative to the crank actuated thereby when the press is in open position and the second motor is in operative position relative to the crank actuated thereby only when the press is closed under light pressure, operatoroperated control means to apply power to the first motor, and control means connected to the first motor and operated thereby upon closing of the press under light pressure to apply power to the second motor. 1 a 1 vi. In a pressing machine in combination, a frame; cooperative pressing elements, one of which is movable with respect to the other to open and closethe press; actuating mechanism for the movable pressing element including a toggle including end links, and an intermediate link pivoted to the end links and having an arm rigid therewith forming a lever with said intermediate link; a multiple crank shaft journalled in the. frame and having three cranks at various angles, one crank being connected tosaid lever to actuate the same and the other two cranks being drivencranks; a first motor connectedto one of the driven cranks to actuate the crank shaft and the crank connected to the lever to thrust-the sameandtheintermediate link to straighten the toggle, thus closing the press under light presure; and a second motor connected to theother of the driven cranksto actuate the crank shaft and the crank connected to the lever-to rock the, same and the intermediate link about the pivot connecting the intermediate link and the. end links, thus; closing the press under heavy pressure,-said motors and driven. cranks being so positioned that the first motor is in operative po-i sition relative to the'crank actuated thereby when the press is in open'positio n and the second motor is in operative position relative to the crank actuated thereby only when the press is closed underlight pressure. 5. In a pressing machine in combination, a frame, cooperative pressing elements, oneof which isjmovable with respect to'the other to its:

tit

'open and close the press, a multiple crank shaft *journalled in the frame, means connecting the crank shaft with the movableajawto operate the'press, a first motor connected tooneof (the cranks to rotate'thecrank shaft less than 180 to close the pressunder light pressure, a second motorhaving a'piston rod'connectedto another crank to rotate the crankshaft less than 180 to'close the press under heavy pressure, said cranks beingpositioned such that the crank connected with the second motor is substantially at right angles to the piston rod of said second mo tor upon final closing of the press. A -6. A garment or ironing press comprising, cooperating. pressing. jaws one of which is movable towards and from the other, crankshaft means having crank means, means operatively connecting the crank shaft means with. the vmovable .jaw to open'and close. the press,'.a first driving means connected with the crank'means to rotate the crank shaft means to close the press to initial closed position, a. second driving. means connected with the crank means to rotate the crank shaft means to close'the press to final closed position, and the first and second driving means-withthe crank means being positionedrelatively toeach other so that the second driving 'meansis in inoperative position-to close the press and is moved to operative position when the press is close'd' to initial closed position. Q

' TIA garment or ironing press comprising, cooperating pressing jaws one of which is movable towards andfrom the other, crank shaft means having crank means, means operatively connecting the crank shaft means with the movable jaw tojopen and close the press, a driving motor connected with the crank means to rotate the crank shaft'means to close the press to initial closed position, means controlling the motor, a driving means connected with the crank means to rotate the crank shaft means to close the press to final closed position, and'the driving motor and driving means with the crank means being positioned relatively to each otherso that the driving means is in inoperative position to close the press and is moved to operative position when the press is closed to initial closed position.

'8'. A garment or ironing press comprising, 'cooperating pressing jaws one of which is movable towards and from the other, crank-shaft means having-crank means/means operatively connecting the crankshaft means with the movable jaw toopen and close the press, adriving means connected with the crank means to rotate the crank shaft means' to close the press'to initial closed position; a' driving motor connected" with the crank means to rotate the crank shaft means to closethe press to final closedpo'sition, means controllingthe motor, and the driving motor and driving means with the crank means being positioned relatively to each other so that the second driving means is'ininoperative position to close the press and is movedto operative position when the press is closed to initialclosed position;

9. A garment or ironing press comprising, cooperating pressing jaws one of which is movable towards and from the other, crank shaft means having crank means, means operatively connecting the crank shaft meanswith the movable jaw to open and close the press, a first driving motor operatively connected with the crank means to rotate the crank shaft means to close the press to initial closed position, a second driving motor operatively connected with the crank means to rotate-thecrank shaft means to close' the-press :to final closed position, means controlling. the motors, and the first'and second driving motor with the crank means being positioned relatively to. each other 'sothat the second driving motor is in inoperative position to close the press and is moved to operative position when the press is .closed to initial closed position. l l 10.-A garment or ironing press comprising, cooperating pressing jaws one of which is movable towardsand from the other, crank shaft means having at least twocranks, means operatively connecting the crankshaft means with-the movable ,jaw to open andclose the press; a first driving means connected with one crank to rotate the crank shaft means to close the press to initial closed position a second driving means connected with the second crank to rotate the crank shaft means to close the press to final closed position, and the first and second driving means-with the cranks being positioned relatively to each other so' that the second driving means is in inoperative position to close the press and is moved to operative'position when the press is closed to' initial closed position.

11. A garment or ironing press comprising, cooperating pressing jaws one of which is movable towards and from the other, crankshaft means having at least two cranks, means operatively connecting the crank shaft means with the movable jaw to open and close the press, a driving motor connected with one crank to rotate the crank shaft means to close the press to initial closed positiongmeans controlling the'motor, a driving means connected with another crank to rotate the crank shaft mean's'to close the press to final closed position, and the driving motor and driving means with the cranks being positioned relatively to each other so that the driving means is in-inoperative position to close the press and is moved to operative position when the press is closed to initial closed position.

12. A garment or ironing press comprising, cooperating pressing jaws one of which is movable towards and from the other, crank shaft means having at least two cranks, means operatively connecting'the crank shaft means with the movable jaw to open and close the press, a driving means connected with one of the cranks to rotate the crankshaft means to close the press to initial closed position, a driving motor connectedfwith another crank to rotate the crank shaft means to close the press to final closed position, means controlling the moto-r, and the driving motor and driving means with the cranks being positioned relatively to each other so that the driving motor is in inoperative position to close the press and is moved-to operative position when the press is closed to initial closed position.

13. A' garment o-r ironing press comprising, cooperating pressing jaws one of which is movable towards and'frorn the other, crank shaft means havingat'least two cranks, means operatively connecting thecrank shaft means withthe movable jaw to open and close the press, a first driving motor connected v,v'vith one of the cranks to rotate the crank shaft-means to close thepress to initial closed position, a second driving motor connected with another crank to rotate the crank shaft means to close thepress to final closed position,

means controlling. theactuation of the motors, and the first and second driving motors with the cranks being positioned relativelyto each other so that the'second drivingmotor is in inoperative positionto close the press and is moved to operative position when the press is closed to initial closed position.

14. A garment or ironing press comprising, cooperating pressing jaws one of which is movable towards and from the other, a toggle operatively connected with the movable jaw and having toggle links, a lever connecting together the links of the toggle at spaced points on the lever, a crank operatively connected with the lever and swinging the same to move the spaced points towards alignment with the axes of the links, and means to rotate the crank.

15. A garment or ironing press comprising, c0 operating pressing jaws one of which is movable towards and from the other, a toggle operatively connected with the movable jaw and having toggle links, a lever connecting together the links of the toggle at spaced points on the lever, a crank operatively connected with the lever and first moving the same axially to straighten the toggle and thereafter swinging the lever to move the spaced points towards alignment with the axes of the links, and means to rotate the crank.

16. A garment or ironing press comprising, cooperating pressing jaws one of which is movable towards and from the other, a toggle operatively connected with the movable jaw and having toggle links, a lever connecting together the links of the toggle at spaced points on the lever, a slot in the lever spaced from the spaced points, a crank operatively connected with the slot in the lever so that the end thereof is engaged to move the lever axially and straighten the toggle, the crank thereafter swinging the same to move the spaced points towards alignment with the axes of the links, and means to rotate the crank.

JOSEPH P. DALY. 

